HPL may make superior products and have a Genius tribologist in Dr. Rudnick, but to be fair without an approval you are trusting the company and its staff and we really have no idea other than their reputation.
Without a approvals all we have is testimony of a few users that are backed up by a few UOAs, no tear downs to measure wear etc. Is this as good as an approval?
I am sure their products are good and I am not knocking HPL as I use their products, but I am operating on hearsay and a few anecdotal reports and I admit that.
I know some people are extremely critical of Valvoline Maxlife ATF because they don't have approvals and yet say they are compatible with 90% of transmissions. What is the difference? Maybe they don't want to spend time and $ on approvals?
What you say is true, but only to you and those like you. (Not meant to be a taunt; stick with me here and I'll explain. I'm not trying to call you out or otherwise yank your chain.)
If you've not personally been to the HPL facility, taken the tour, met their lab personnel, seen the lab equipment, talked with their managers, seen first hand the commitment to cleanliness ...
Then I'd agree, you'd have to take it on the word of others. You have to "trust" other peoples anecdotal reports and observations.
How is that any different than trusting any of the major oil blenders? How is that any different than trusting the API licensees? I mean ... have you personally gone to any API test sites and watched Mobil1 or a PZ product be certified? Have you looked at the calibration log books of the API lab to see the ISO process validations? Do you check the API EOLCS site each and every time before you bought some oil to make sure that product you seek is still current? Have you been to a Mobil blending facility and seen the cleaning procedures they use to purge the tanks? Have you inspected the bulk containers for contamination prior to filling like HPL does each and every time?
The API does not exist to serve the industry benevolently; they're a business. They charge money to test products. Large multinational companies have plenty of money for the expensive testing. Smaller companies often do not. Even Valvoline and Amsoil don't seek licenses for all their products. Why? I have no idea. Smaller companies such as HPL don't seek API certs for several reasons; cost and applicability being two. People who use the HPL products do "trust" them; many of us because we've been to their facility and understand that an API cert won't improve their product, and may in fact compromise it if it were tailored to meet the API spec. To meet some of the API specs, HPL would essentially have to "dumb down" their lubes; something they're not interested in doing to get a license that means zilch to their niche customer base.
My point is that you "trust" the systems you've been conditioned to accept, yet you've probably not ever been to Mobil or API, right? How is that any different than not being to HPL and trusting them? I understand it's hard to comprehend why HPL costs so much; that is, until you tour their facility and speak with their staff. If you've never been there, it seems like a fairy tale. I understand that some anecdotal UOAs and testimony seems a bit thin, but is that really any different than what your actual experience is with any major brand and the API? You "trust" them based on their claims and certifications, though you've never been to those facilities I suspect. Your faith in them is based not on direct observation, right? You trust the major brands because of the API license, but you've never personally validated the API system, right? Why do you trust the API if you've never personally been there to see their equipment and talk with their personnel?
Drew7a said:
No actual controlled test has been done. I am confident they would pass the most stringent approvals, but that confidence is based trust.
HPL most certainly conducts plenty of inside testing, and also engages outside 3rd party testing, using ISO accredited processes and equipment. (Just like any other quality lab such as API, SWRI, etc). Some of the HPL tests are typical industry standards such as vis, FP, etc. Other tests are unique to their specific goals and won't align well with typical API license criteria. Some typical tests such as Noack are not done because other less prominent tests actually better quantify the base stocks they use. Again - if you ever toured their facility, you'd be aware of these things. The HPL lab is every bit as good as any other facility in their field. It is accurate to say that no API license exists for the HPL products; I explained that above. It is, however, INACCURATE to say that "
no actual controlled test has been done."; that's just a statement based on your ignorance of their operations. HPL does both in-house and 3rd party testing on their products; those tests are specific to the goals they set which often are not the same as mass-market products.
Again, I'm not trying to pick on you as an individual; if it comes off that way then I apologize right here and now. But some of your doubts seem to be based on incomplete or inaccurate understanding of HPL quality and development processes.